From: Santosh Shilimkar
> Sent: 20 September 2015 00:05
> Even with per bucket locking scheme, in a massive parallel
> system with active rds sockets which could be in excess of multiple
> of 10K, rds_bin_lookup() workload is siginificant because of smaller
> hashtable size.
>
> With some tests, it was found that we get modest but still nice
> reduction in rds_bind_lookup with bigger bucket.
>
> Hashtable Baseline(1k) Delta
> 2048: 8.28% -2.45%
> 4096: 8.28% -4.60%
> 8192: 8.28% -6.46%
> 16384: 8.28% -6.75%
>
> Based on the data, we set 8K as the bind hash-table size.
Can't you use of on the dynamically sizing hash tables?
8k hash table entries is OTT for a lot of systems.
David
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